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Probability Vocabulary Wetherell
Into to exp. and the. probability
12
Mathematics
6th Grade
11/10/2009

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Term
event
Definition
A situation involving chance that has more than one possible outcome.
Term
outcome
Definition
Any one of the possible results of an event.
Term
experiment
Definition
A test to determine the likelihood of a specific outcome of an event.
Term
probability
Definition
The chance that a particular outcome will occur measured as a ratio of the total possible outcomes. P = [favorable outcomes]/[possible outcomes].
Term
chance
Definition
The likelihood that a particular outcome will occur.
Term
theoretical probability
Definition
The likelihood a specific outcome will occur, determined by calculating expected outcomes under ideal circumstances.
Term
experimental probability
Definition
The likelihood a specific outcome will occur, based on repeated testing and observation of results. It is the ratio of the number of times an event occurs to the number of trials.
Term
certain
Definition
An event WILL definitely happen. An outcome with a probability of 1.
Term
likelihood
Definition
The chance that a particular outcome will occur [impossible, unlikely, likely, certain].
Term
likely
Definition
The outcome will probably happen (probability between 0.5 and 1.0).
Term
unlikely
Definition
The outcome will probably NOT happen (probability between 0 and 0.5).
Term
impossible
Definition
An event WILL NOT happen; no chance of occurring (probability of 0).
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